20808220188

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{314761}}^1$

素因数の和:315562

約数の個数: 48

約数和(自身を含む): 55559270144

約数和(自身を除く): 34751049956

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 787, 1574, 2361, 3148, 4722, 5509, 9444, 11018, 16527, 22036, 33054, 66108, 314761, 629522, 944283, 1259044, 1888566, 2203327, 3777132, 4406654, 6609981, 8813308, 13219962, 26439924, 247716907, 495433814, 743150721, 990867628, 1486301442, 1734018349, 2972602884, 3468036698, 5202055047, 6936073396, 10404110094, 20808220188]

約数ペア:

[(1, 20808220188), (2, 10404110094), (3, 6936073396), (4, 5202055047), (6, 3468036698), (7, 2972602884), (12, 1734018349), (14, 1486301442), (21, 990867628), (28, 743150721), (42, 495433814), (84, 247716907), (787, 26439924), (1574, 13219962), (2361, 8813308), (3148, 6609981), (4722, 4406654), (5509, 3777132), (9444, 2203327), (11018, 1888566), (16527, 1259044), (22036, 944283), (33054, 629522), (66108, 314761)]